RFR: Merge openjdk/jdk:master

[William Kemper]

This PR merges tag jdk-20+20

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Commit messages:
 - Merge tag 'jdk-20+22' into merge-jdk-20+22
 - 8295670: Remove duplication in java/util/Formatter/Basic*.java
 - 8296115: Allow for compiling the JDK with strict standards conformance
 - 8289838: ZGC: OOM before clearing all SoftReferences
 - 8290063: IGV: Give the graphs a unique number in the outline
 - 8296235: IGV: Change shortcut to delete graph from ctrl+del to del
 - 8295991: java/net/httpclient/CancelRequestTest.java fails intermittently
 - 8296142: CertAttrSet::(getName|getElements|delete) are mostly useless
 - 8294845: Make globals accessed by G1 young gen revising atomic
 - 8295990: Improve make handling of strip flags
 - ... and 141 more: https://git.openjdk.org/shenandoah/compare/998f68b2...db5f25ad

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=shenandoah&pr=168&range=00.0
 - openjdk/jdk:master: https://webrevs.openjdk.org/?repo=shenandoah&pr=168&range=00.1

Changes: https://git.openjdk.org/shenandoah/pull/168/files
  Stats: 190495 lines in 1429 files changed: 96638 ins; 61219 del; 32638 mod
  Patch: https://git.openjdk.org/shenandoah/pull/168.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah pull/168/head:pull/168

PR: https://git.openjdk.org/shenandoah/pull/168